Home / 57,572.91-86,370.30-20,143.62

Finding the Fourth Proportional to 57,572.91, 86,370.30 and 20,143.62

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Solution

The fourth proportional to 57,572.91, 86,370.30 and 20,143.62 is: 30,219.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,572.91 : 86,370.30 = 20,143.62 : x
  2. Step 2: Convert to fraction form
    57,572.91/86,370.30 = 20,143.62/x
  3. Step 3: Cross multiply
    57,572.91x = 86,370.30 × 20,143.62
  4. Step 4: Simplify right side
    57,572.91x = 1,739,810,502.49
  5. Step 5: Solve for x
    x = 1,739,810,502.49/57,572.91
  6. Step 6: Final answer
    x = 30,219.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.